EP1408221A3 - Fuel supply system with solenoid-actuated injector - Google Patents

Fuel supply system with solenoid-actuated injector Download PDF

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Publication number
EP1408221A3
EP1408221A3 EP03022681A EP03022681A EP1408221A3 EP 1408221 A3 EP1408221 A3 EP 1408221A3 EP 03022681 A EP03022681 A EP 03022681A EP 03022681 A EP03022681 A EP 03022681A EP 1408221 A3 EP1408221 A3 EP 1408221A3
Authority
EP
European Patent Office
Prior art keywords
valve
opening
supply system
solenoid
current
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP03022681A
Other languages
German (de)
French (fr)
Other versions
EP1408221A2 (en
EP1408221B1 (en
Inventor
Katsuya Hitachi Ltd. Int. Prop. Gp. Oyama
Shoji Hitachi Ltd. Int. Prop. Gp. Sasaki
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Hitachi Ltd
Original Assignee
Hitachi Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Hitachi Ltd filed Critical Hitachi Ltd
Publication of EP1408221A2 publication Critical patent/EP1408221A2/en
Publication of EP1408221A3 publication Critical patent/EP1408221A3/en
Application granted granted Critical
Publication of EP1408221B1 publication Critical patent/EP1408221B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02D—CONTROLLING COMBUSTION ENGINES
    • F02D41/00—Electrical control of supply of combustible mixture or its constituents
    • F02D41/20—Output circuits, e.g. for controlling currents in command coils
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02D—CONTROLLING COMBUSTION ENGINES
    • F02D41/00—Electrical control of supply of combustible mixture or its constituents
    • F02D41/22—Safety or indicating devices for abnormal conditions
    • F02D41/221—Safety or indicating devices for abnormal conditions relating to the failure of actuators or electrically driven elements
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02D—CONTROLLING COMBUSTION ENGINES
    • F02D41/00—Electrical control of supply of combustible mixture or its constituents
    • F02D41/30—Controlling fuel injection
    • F02D41/3082—Control of electrical fuel pumps
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02D—CONTROLLING COMBUSTION ENGINES
    • F02D41/00—Electrical control of supply of combustible mixture or its constituents
    • F02D41/20—Output circuits, e.g. for controlling currents in command coils
    • F02D2041/2003—Output circuits, e.g. for controlling currents in command coils using means for creating a boost voltage, i.e. generation or use of a voltage higher than the battery voltage, e.g. to speed up injector opening

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Electrical Control Of Air Or Fuel Supplied To Internal-Combustion Engine (AREA)
  • Fuel-Injection Apparatus (AREA)
  • Combined Controls Of Internal Combustion Engines (AREA)

Abstract

The invention relates to a fuel supply system comprising a means for detecting operating condition of an engine (1), a means for calculating the width of the fuel injection pulse including valve-opening signal and holding signal based on the detected operating condition, a means for supplying valve-opening current to the solenoid located in the fuel injector (13) based on the fuel injection pulse width, and a means for supplying solenoid holding current for holding the valve-opening condition after the valve-opening current has reached the predetermined current value; and the fuel supply system supplying current to the solenoid when the logical product of the valve-opening signal and the holding signal has been formed, and the fuel supply system diagnosing an abnormality of the fuel injector (13) when the time period from the start of the fuel injection pulse until the valve-opening current reaches the predetermined current value is shorter than the predetermined one.
Figure 00000001
EP03022681A 2002-10-07 2003-10-07 Fuel supply system with solenoid-actuated injector Expired - Lifetime EP1408221B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2002293155 2002-10-07
JP2002293155A JP3894088B2 (en) 2002-10-07 2002-10-07 Fuel supply device

Publications (3)

Publication Number Publication Date
EP1408221A2 EP1408221A2 (en) 2004-04-14
EP1408221A3 true EP1408221A3 (en) 2004-06-16
EP1408221B1 EP1408221B1 (en) 2006-11-08

Family

ID=32025473

Family Applications (1)

Application Number Title Priority Date Filing Date
EP03022681A Expired - Lifetime EP1408221B1 (en) 2002-10-07 2003-10-07 Fuel supply system with solenoid-actuated injector

Country Status (4)

Country Link
US (1) US6880530B2 (en)
EP (1) EP1408221B1 (en)
JP (1) JP3894088B2 (en)
DE (1) DE60309551T2 (en)

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JP3894088B2 (en) * 2002-10-07 2007-03-14 株式会社日立製作所 Fuel supply device
US7252072B2 (en) 2003-03-12 2007-08-07 Cummins Inc. Methods and systems of diagnosing fuel injection system error
JP4353211B2 (en) * 2006-07-11 2009-10-28 株式会社日立製作所 Controller with built-in communication function
DE102006046840A1 (en) * 2006-10-02 2008-04-03 Robert Bosch Gmbh Process for monitoring a fuel injection system recognizes an error when a first value and/or a second value deviate from an expected value
DE102006055341B3 (en) * 2006-11-23 2008-03-13 Siemens Ag Method for localizing fault or error position within fuel injection system, e.g. for combustion engine, requires sending pulse defined by energy content and duration to each injector
JP2008291778A (en) * 2007-05-25 2008-12-04 Denso Corp Solenoid valve control device
JP4933396B2 (en) * 2007-10-15 2012-05-16 ボッシュ株式会社 Battery voltage short detection diagnostic method and vehicle operation control device
JP4871245B2 (en) 2007-10-26 2012-02-08 日立オートモティブシステムズ株式会社 Internal combustion engine control device
JP5203859B2 (en) 2008-09-01 2013-06-05 日立オートモティブシステムズ株式会社 Failure diagnosis device for electromagnetic load circuit
JP4688922B2 (en) * 2008-11-21 2011-05-25 三菱電機株式会社 Control device for internal combustion engine
US7931008B2 (en) * 2009-08-03 2011-04-26 GM Global Technology Operations LLC Systems and methods for detecting failed injection events
US8214132B2 (en) * 2010-09-17 2012-07-03 Caterpillar Inc. Efficient wave form to control fuel system
US8813723B2 (en) * 2011-05-20 2014-08-26 GM Global Technology Operations LLC System and method for detecting a stuck fuel injector
JP5851354B2 (en) * 2012-06-21 2016-02-03 日立オートモティブシステムズ株式会社 Control device for internal combustion engine
DE102012211994B4 (en) * 2012-07-10 2024-08-08 Vitesco Technologies GmbH Control unit for controlling at least one fuel injection valve and circuit arrangement with such a control unit
DE102012215257B4 (en) * 2012-08-28 2022-10-06 Vitesco Technologies GmbH Circuit arrangement for inductive heating of at least one fuel injection valve and fuel injection valve arrangement with such a circuit arrangement and method for operating a circuit arrangement and a fuel injection valve arrangement
JP5542884B2 (en) * 2012-08-30 2014-07-09 三菱電機株式会社 In-vehicle engine controller
DE102013201410B4 (en) * 2013-01-29 2018-10-11 Mtu Friedrichshafen Gmbh Method for operating an internal combustion engine and corresponding internal combustion engine
JP5842858B2 (en) * 2013-04-09 2016-01-13 株式会社デンソー Abnormality detection circuit for fuel injection device
JP5994756B2 (en) * 2013-09-13 2016-09-21 株式会社デンソー Injector drive device
JP5797809B1 (en) 2014-05-09 2015-10-21 三菱電機株式会社 Electric load feeding control device
JP6181865B2 (en) * 2014-05-13 2017-08-16 日立オートモティブシステムズ株式会社 Electronic control unit
US9617940B2 (en) * 2014-08-14 2017-04-11 General Electric Company Engine diagnostic system and an associated method thereof
JP6183341B2 (en) * 2014-12-03 2017-08-23 株式会社デンソー Injector drive device
CN106677946B (en) * 2016-12-14 2019-05-14 中国第一汽车股份有限公司 The device of fuel injector magnetic system armature operating point can be detected
CN106593737B (en) * 2016-12-14 2019-05-14 中国第一汽车股份有限公司 Common-rail injector solenoid valve armature is attracted point detection device
DE112018005560T5 (en) * 2017-11-24 2020-07-09 Hitachi Automotive Systems, Ltd. Fuel injection control device and fuel injection control method
JP7135809B2 (en) * 2018-04-20 2022-09-13 株式会社デンソー Injection control device
JP7135810B2 (en) * 2018-04-20 2022-09-13 株式会社デンソー Injection control device
US11193442B2 (en) * 2018-05-23 2021-12-07 Hitachi Astemo, Ltd. Fuel injection control device
DE112020004492T5 (en) * 2019-10-28 2022-06-23 Hitachi Astemo, Ltd. LOAD CONTROL DEVICE
JP2021113538A (en) * 2020-01-20 2021-08-05 日立Astemo株式会社 Solenoid valve drive device
KR20210099392A (en) * 2020-02-04 2021-08-12 현대자동차주식회사 Method for Split Injection Control on Cold Start and Engine System Thereof
WO2021260998A1 (en) * 2020-06-23 2021-12-30 日立Astemo株式会社 Fuel injection control device
JP7472824B2 (en) * 2021-02-26 2024-04-23 株式会社デンソー Fuel injection control device

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0309753A1 (en) * 1987-09-30 1989-04-05 Siemens Aktiengesellschaft Method for monitoring an inductive load
DE10015647A1 (en) * 2000-03-29 2001-10-04 Bosch Gmbh Robert Method for driving electromagnetic load, especially solenoid valve in combustion engine, requires detecting and evaluating the charge state of the electric charge storage element i.e. battery
JP2002061534A (en) * 2000-08-22 2002-02-28 Hitachi Ltd Injector drive circuit

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US4922878A (en) * 1988-09-15 1990-05-08 Caterpillar Inc. Method and apparatus for controlling a solenoid operated fuel injector
JP3613885B2 (en) * 1996-05-24 2005-01-26 国産電機株式会社 Drive control method and drive control apparatus for injector for internal combustion engine
JPH1113519A (en) 1997-06-19 1999-01-19 Nissan Motor Co Ltd Diagnostic device for drive control device of fuel injection valve, and diagnostic device therefor
JPH11148439A (en) * 1997-06-26 1999-06-02 Hitachi Ltd Electromagnetic fuel injection valve and its fuel injection method
JPH1182127A (en) 1997-09-08 1999-03-26 Unisia Jecs Corp Diagnostic device of fuel injection valve driving control device
JP3905247B2 (en) * 1999-05-13 2007-04-18 三菱電機株式会社 In-cylinder injector control device
JP3932474B2 (en) * 1999-07-28 2007-06-20 株式会社日立製作所 Electromagnetic fuel injection device and internal combustion engine
JP3505453B2 (en) * 1999-11-08 2004-03-08 三菱電機株式会社 Fuel injection control device
JP2001152940A (en) * 1999-11-24 2001-06-05 Mitsubishi Electric Corp Fuel injection system
JP2001317394A (en) * 2000-04-28 2001-11-16 Mitsubishi Electric Corp Fuel injection controller for cylinder injection engine
US6332455B1 (en) * 2000-10-17 2001-12-25 Mitsubishi Denki Kabushiki Kaisha Device for controlling fuel injection
JP2002357149A (en) * 2001-05-31 2002-12-13 Aisan Ind Co Ltd Drive circuit of electromagnetic fuel injection valve
JP4037632B2 (en) * 2001-09-28 2008-01-23 株式会社日立製作所 Control device for internal combustion engine provided with fuel injection device
JP3894088B2 (en) * 2002-10-07 2007-03-14 株式会社日立製作所 Fuel supply device

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0309753A1 (en) * 1987-09-30 1989-04-05 Siemens Aktiengesellschaft Method for monitoring an inductive load
DE10015647A1 (en) * 2000-03-29 2001-10-04 Bosch Gmbh Robert Method for driving electromagnetic load, especially solenoid valve in combustion engine, requires detecting and evaluating the charge state of the electric charge storage element i.e. battery
JP2002061534A (en) * 2000-08-22 2002-02-28 Hitachi Ltd Injector drive circuit

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN vol. 2002, no. 06 4 June 2002 (2002-06-04) *

Also Published As

Publication number Publication date
EP1408221A2 (en) 2004-04-14
JP3894088B2 (en) 2007-03-14
JP2004124890A (en) 2004-04-22
EP1408221B1 (en) 2006-11-08
DE60309551D1 (en) 2006-12-21
US6880530B2 (en) 2005-04-19
DE60309551T2 (en) 2007-07-05
US20040118384A1 (en) 2004-06-24

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